Rays and Waves

A pair of binoculars might be the closest thing to a superpower you can buy. That is how a friend once described them while gifting a pair to his wife, and it is easy to see why. In this episode of Rays and Waves, Daniel and Steven explore the surprisingly rich optical engineering behind binoculars. From magnification and aperture to prisms, coatings, and color performance, we follow the history o...

From Hubble’s breathtaking images to the deep infrared view of the James Webb Space Telescope, space-based observatories have transformed how we see the universe. They reveal black holes, probe dark energy, trace the birth of stars, and even let us study the atmospheres of distant planets, pushing astronomy into entirely new territory. In this episode of Rays and Waves, Daniel and Steven sit down...

In a quiet laboratory, bursts of ultrafast laser light are etching humanity’s information deep inside glass, layer by layer, voxel by voxel. Long after today’s hard drives and magnetic tapes have failed, this glass may still faithfully preserve our data, readable thousands of years into the future. In this episode of Rays and Waves, Daniel and Steven dive into Microsoft Research’s Project Silica w...

1.3 billion years ago, two black holes collided in a distant galaxy, sending ripples through the fabric of spacetime. On September 14, 2015, those ripples finally reached Earth and humanity detected gravitational waves for the very first time. In this episode of Rays and Waves, Daniel and Steven sit down with Dr. Gabriele Vajente, Deputy Head of Systems Science and Engineering at LIGO, who was a p...

In this episode of Rays and Waves, Daniel and Steven take a nostalgic dive back into the world where they both began their scientific journeys: optical tweezers. These remarkable tools, using tightly focused laser beams to exert forces and torques on microscopic objects, have transformed how we manipulate cells, DNA, bacteria, and so much more. Their invention by Arthur Ashkin in 1986 ultimately e...

When we think about optical systems, lenses and light often steal the spotlight. But behind every high-performance optical instrument lies a critical foundation: Optomechanics. From precision mounts to thermal stability, the mechanical design determines whether an optical system performs flawlessly or fails spectacularly. In this episode of Rays and Waves, Daniel and Steven sit down with Nathan Wa...

The current narrative is that Artificial Intelligence is reshaping industries at breakneck speed. Is optics no exception? In this special episode of Rays and Waves Daniel and Steven host the show's very first panel discussion! They bring together six experts from across the optics landscape to try to understand: How will AI change optical engineering? From accelerating lens design to enabling smar...

Standards may not grab headlines, but they quietly shape the world. In this episode of Rays and Waves, we shine a light on the unsung hero of modern optical engineering: optical standards. From the fiber optics enabling global connectivity, via laser grocery scanners, to the precision lenses the James Webb telescope, none of it works without agreed-upon rules and measurements. These standards ensu...

In this episode, we sit down with Erwin De Baetselier, the CEO of Luceda, a company at the forefront of software innovation for Photonic Integrated Circuits (PICs) . As PICs continue to reshape the landscape of optical systems—from data centers to quantum labs—the tools used to design and simulate them are becoming just as critical as the hardware itself. Luceda’s software empowers engineers and r...

In this episode, we explore the rise of Photonic Integrated Circuits (PICs), which aim to compress the sprawling optical setups found on lab benches into compact, chip-scale systems. These integrated platforms are becoming foundational for technologies like high-speed data communication, LIDAR, optical quantum computing, AR/VR, and biotech diagnostics—where size, modularity, and manufacturability...

In the last episode of Rays and Waves about linear optical quantum computers we discussed how using photons as qubits is good in many ways. However, the biggest hurdle is that photons don’t like interacting with each other, which makes the critical two-qubit gates difficult to create. But a 2001 discovery showed it was in fact possible to effectively make two-qubit interactions and therefore a ful...

In this episode of Rays and Waves we speak about Linear Optical Quantum Computers. There has been lots of talk about quantum computers in the science media lately. Both companies and academic labs are hard at work to build the sought-after fault-tolerant quantum computer. As it turns out, one approach to building quantum computers is with optics. Join us as we explore the pros and cons with this l...

In this episode of Rays and Waves we speak to Katsumoto Ikeda. Kats runs a brilliant webpage about optical design called “A Pencil of Rays” (https://www.pencilofrays.com/). He has worked as an optical designer for well over a decade. and is now the Application Engineer Manager at Ansys in Japan. Join Daniel, Steven, and Kats in a riveting conversation about optical design. If you like the show, te...

In this episode of Rays and Waves we speak to Mark Nicholson. Few people have made a bigger impact on how modern optics is designed and analysed. Mark was for 30 years involved with Zemax, one of the optical design software giants on the market. Nowadays Mark is retired, but continues to heavily impact the optics industry by running a YouTube channel called Design Optics Fast which teaches a moder...

In this episode of Rays and Waves we get to know the podcast purpose and the hosts a bit. Join Daniel and Steve in the episodes to come as they explore the vast world of optics. If you like the show, tell your friends about it! And like, subscribe, and all that! If you want to get in touch, shoot us an email on rays.and.waves.podcast@gmail.com Intro music is Good Vibe by Twisterium. Thanks for mak...

In this episode of Rays and Waves we speak about Optical Communication. Join Daniel and Steve as they explore how information transfer through hair-thin glass fibres are changing the world. While data rates have grown by over 10 billion times since the first commercial systems we are still signalling the fall of Troy with fire beacons by blinking lights on and off, only mind-numbingly fast! If you...

In this episode of Rays and Waves we speak about Optical Design. Optical products are all around us, ranging from phones, cameras, cars, communication, grocery shopping, medical devices, and almost everything in between. How to design them? Join Daniel and Steve as they explore optical design from fundamentals of the thin lens equation learned in high school physics to how high-level optical syste...